Automatic sprinkler.



ELVINO V. SMITH, OF PHILADELPHIA, PENNSYLVANIA.

AUTOMATIC SPRINKLER.

Specification of Letters Patent.

Patented Feb.4 20,1906.

Application and May 19, 1906. serai No. 261,137.

' To a/ZZ whom it may concern:

Be it known that I, ELvrNo VSMHH, of the city and county of Philadelphia, State of Pennsylvania, have invented an'Improvement in Automatic Sprinklers, of which the following is a s eciiication.;

- the valve on its seat and is adapted f members that they corrosion,

" that when .tion of myautomatic sprinkler.y Fig. '2 is a More artcu arly my invention relates to the fusib e valve-supporting strut which holds' when and release the valve;

In most of the lant's in which automatic sprinklers are use they are subjected to acid;- gases, fumes, and vapors, which acting on fused to fall apart ,the fusible connections or solder produce corroslonl and destroy or materially reduce'.

the fusibility7 thereby rendering the sprin-A rklers ineifective.

It is one of the object-s of this invention to avold this corrosion of the fusible connections by so protecting them that they are not sub'- -jected to the action of such acid, gases, &c.,

and that their normal fusibility is preserved and rendered available' when the emergency for which the device is provided arises. This object I accomplish by so shielding the fusible connections between the two supporting are not exposed until the shields are released i der which unites them to said supporting members.

It is also an object of my invention to render the separation of the parts When their connections are fusedvcertain and quick, and

,this object I accomplish not only by the prof *ee-Lotion of the fusible connection to prevent but also bythe employment of the solder or lfusible material in such manner fused it. acts as a lubricant to facilitate the separation of theI members.

It is a further object of my invention to impart special strength to the strut, so that the requisite amount of tension may be placed on the valve without danger of breaking the fusible connection under strain.

.In the drawings, Figure 1 is a side elevavertical section of the same with one shieldplate of thefusible strut removed. Fi 3 is a horizontal section on the line A A of ig. 2. Fig. 4 is a side elevation of the fusible strut. Fig. 5 is a vertical section of the same with the ost in elevation. Fig. 6 is a front elevationwith theouter shield-plate removed; and Fig. 7 is a side elevation'of the strut, illussup ortingl by the fusingof the solp the plate h and post vas at j',

tratin the action of the parts, when fused and'fa ling apart. f

- a, is the usual nozzle, which is screwed into the su ply-pipe and which carries the usual frlame by which the valve is supported.

v c is the flexible diaphragm between the nozzle and frame, which forms the flexible seat for the valve d..

v e is the usual screw in the 'bottom of the frame b, which bears on the end of the valve-v supporting strut and by which the tension of the valve on the iiexible seat lc may be adjusted. Y v f f isthe usual. rotary distributer, supported on the screw e.

So far as the sprinkler has been described it is of well-known construction, and I do not mean to limit my strut to use With a sprinkler of this particular character', as it may be used equally Well with other forms.

The strut consists of a plate, one end of which' constitutes one point of supoport, a valve-supporting piece supported yl said plate and supporting the valve, and one or more rotecting shields or plates arranged over t e face of the first plate and the valveiece, said lates bein fusibly united toget supporting piece at their adjacent faces. f

his a plate provided with a vertical slot it extending from near the up er edge. 'g is apost fitting in this slot an having'its lower end (which ,is preferably, notched, as lat g) supportedvby the plate'h at the lower end of the slot. The up- 'per end of the post g projects beyond the edge4 of the late and bears against the valve d. 'i is a s ield fitting over one side of the plate and post g'and grooved, as at i', to receive the post.

The plate i is preferably provided with small lugs i2 on the' side edges, which engage notches h2 on the plate h.

j is ashield iitting over the other side of g and similarly grcoved, to receive the'post. The upper edge of' the plate h is provided with hooks h3, which extend over the upper edge of the shield-plate The parts h g i j when thus assembled are soldered together and form the fusible su lportingstrut for the valve. The lower en of the plate h rests on the screw e, and this end is bent, as. shown, to bring the point of support out of the direct line of the post. The solder is allowed to base up through the er and to t e body of t e valve# A- flow between the plates i j and about-the post g and firmly unites them without anywhere belng eXplosed-to the acids'and ases w ich so frequently. res t in of the room', corrosion and destroy the -fusibilty l The use of a post g contained in the'slot 7i of the plateand soldered therein and to the ,shielding-plates 'i makes a very strong 'strueture which..ew1ll' stand'- a very substantial strain withoutzdanger of rupture of 'the 'fusible eormections,andas-.the solder or fusible material'is all protected, and therefore.

not liable. to corrosion', more solder may be the desired tensionl on .the valve..

when the Solda is fused, the paas will fait apart, asshown Fig. 7. Thefouter shield` pla e j becomes disengaged" irom theho'oked j en' s h3 h3 of fthe plate h .and releases that n awayin-the other direction.

of the plate h lowers the st'lg, which then.

' slot of valved'o ens; v l What vclarin as new, and desirejto secure,

plate 'and the plate t, which will then' fall falls in the direction of t 'e plate j, and the by LettersPatent, is a .sf )llowsztomatic sprinklers, consisting of a verticallylslotted. member the lower end Vof which con'-` stitut es one strut end,.andafpost supported at loneI of its ends' only inthe'inner end of .the

- ing unsupported by the slotted'member adjacent to its strut end, and said parts-being fusible. united, whereby ontheusing of. thel connection the movement of said; slotted member will lower the point -o'i sup ort .be-' tween the inner end'of its slot and t e post, and resulti allowing the post to drop..

2 A fusible valve-supporting strut for au tomatic sprinklers, consisting oi a vertically-v l This movement the other member' andthe upper free -end forming theother strut end, sai

slotted' memberthe lower endv of which con- 5 stitutes one strut. end, and a post supported at. one of' its ends only in the `inner end of the -slot of the other m' mber, and .the oth'erfree .end bein unsuppor led and forming the other strut en of the device, and an out'er shield'- 5 plate located over the lace of said. slotted member andthe body of the pose-said shield and slotted member ,being usiblyunited'to- -gether attheir adl'aeent faces.

3. fusible va ve-supporting-strut for au# .6 tomatic sprinklers, consisting of a-verticallyslotted member the lower' end offwhich-constitutes-one strut end, and a p ost supported y at one .ofits ends only in'the inner fend of the slot of the other member, andthe other free end'bein unsupported and forming the other ystrut en :of the device, vand outer-.shield-` plates arranged ,over the faces ofthe slotted member and .post and fusiblyunited to them."

4. .A fusible-valve-supporting strut for au- A7 tomatic sprinklers, consisting lof the longi tu.-

dinally-slotted plate h, the postV g positively sup orted at one end only'in the inner end of l sai' .slotthe other end constituting one strut end and being unsupported, and the' shield-l 7 plates 'i' and jarranged one on each face of the..4 plate h and ycovering the body of the post said platesh, fi, beingfusiblyvunited together v and to the ostgatt eir adjacent faces.:- l

l 5. Afusi le valvefsupporting-strut for au- 2 tomatic sprinklers, consisting of the longitudinally ,fsl'otted -plateh hayan the hooked portionhB'lat the upper end o the slot, the

post gpositively supported at 'one end only at-- the inner endtof saldslot, the other end conf 8 stituting one strut end and being unsupported. -plate by said slotted member, and the' shie .j larranged over one faceof the plate h and.v

post-.g andhaving its upper: edge engaged by? the hooked portion h3," said-plates being fusig bly united together and-to the post g. In testimony of which invention I hereunto set my'hand. l

i ELVINO V. SMITH.

Witnesses:

ERNEST HOWARD HUNTER, R. M. KELLY. 

